Examine source code of Batman vengeance

{
  "theme": {
    "images": {
      "theme_frame": "batman_vengeance-h.JPG"
    },
    "colors": {
      "frame": "#f71008",
      "tab_background_text": "#081da1"
    }
  },
  "version": "2.0",
  "name": "Batman vengeance",
  "manifest_version": 2,
  "description": "The fantastic batman!"
}